Parties! The style, stars and scoop from Hollywood's hottest events

After joining Ben Affleck to help jeweler Cartier unveil their line of holiday cards to benefit the Art of Elysium, Rachel Bilson got glam in Abaete to show her support for friend Hayden Christensen at the premiere of Awake in New York City. The O.C. alum returned to the small screen this week with a guest spot on the NBC series, Chuck.